diff --git a/app/assets/stylesheets/blacklight/build.scss b/app/assets/stylesheets/blacklight/build.scss
index c3a9944f8..8cf1c485b 100644
--- a/app/assets/stylesheets/blacklight/build.scss
+++ b/app/assets/stylesheets/blacklight/build.scss
@@ -1,9 +1,4 @@
 @import "bootstrap/scss/functions";
 @import "bootstrap/scss/mixins/breakpoints";
 @import "bootstrap/scss/variables";
-
-/* These classes are all the BS things that Blacklight depends on (via @extend) */
-.px-4 {
-}
-
 @import "blacklight";